Hi Richard, Originally, my thinking was I'd like drop one member out of a 3 member RAID-Z and turn it into a RAID-1 zpool.
Although, at the moment I'm not sure. Currently, I have 3 volume groups in my array with 4 disk each (total 12 disks). These VGs are sliced into 3 volumes each. I then have two database servers using one LUN from each of the 3 VGs RAID-Z'd together. For redundancy its great, for performance its pretty bad. One of the major issues is the disk seek contention between the servers since they're all using the same disks, and RAID-Z tries to utilize all the devices it has access to on every write. What I thought I'd move to was 6 RAID-1 VGs on the array, and assign the VGs to each server via a 1 device striped zpool. However, given the fact that ZFS will kernel panic in the event of bad data I'm reconsidering how to lay it out. Essentially I've got 12 disks to work with. Anyway, long form of trying to convert from RAID-Z to RAID-1. Any help is much appreciated. Best Regards, Jason On 11/28/06, Richard Elling <[EMAIL PROTECTED]> wrote:
Jason J. W. Williams wrote: > Is it possible to non-destructively change RAID types in zpool while > the data remains on-line? Yes. With constraints, however. What exactly are you trying to do? -- richard
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